Tensile & Yield Strength of ASTM A335 P11 at Elevated Temperatures

Designated as UNS K11597, ASTM A335 P11, is also known as 1.25Cr-0.5Mo. Generally, its minimum tensile strength and yield strength are respectively 415 MPa and 205 MPa at room temperatures. However, its tensile & yield strength values in different elevated temperatures should be considered in practice. These values shall be in accordance with Table U and Table Y-1 of ASME Boiler and Pressure Vessel Code Section II Part D.

ASTM A335 P11 seamless pipes in stock, 12″ x 45 mm(w.t).

Tensile Strength of ASTM A335 P11 at Elevated Temperatures

Temperature, °C

-30~40

100

150

200

250

300

325

350

Tensile Strength, MPa

414

414

414

414

414

414

414

414

Temperature, °C

375

400

425

450

475

500

525

550

Tensile Strength, MPa

414

414

414

404

390

371

349

-

*The tabulated tensile strength values are for use in design calculations. The temperature shall be interpreted as “not exceeding”.

Yield Strength of ASTM A335 P11 at Elevated Temperatures

Temperatures, °C

-30~40

65

100

125

150

175

200

225

250

275

Yield Strength, MPa

207

197

190

185

181

178

175

172

169

166

Temperatures, °C

300

325

350

375

400

425

450

475

500

525

Yield Strength, MPa

164

161

158

155

153

149

145

142

137

132

*The tabulated yield strength values are for use in design calculations. The temperature shall be interpreted as “not exceeding”.